Week number (#6439)

* Support week number for batch generation

* Bug fix - hour is not minute

* Update docs

InvenTree/stock/models.py

@@ -324,8 +324,9 @@ def generate_batch_code():
         'year': now.year,
         'month': now.month,
         'day': now.day,
-        'hour': now.minute,
+        'hour': now.hour,
         'minute': now.minute,
+        'week': now.isocalendar()[1],
     }
 
     return Template(batch_template).render(context)